​Last week's mob violence at the Wisconsin State Fair was been captured on cell phone, and we've got the video.

Witnesses have described a mob of dozens to 100 African-American teenagers as attacking white patrons outside the fairgrounds, suggesting that the violence was racially motivated. At least 34 people have been arrested--but so far names and mugshots have not been released.

Frankly, it's hard to tell the color of skin of the person at the bottom of the heap. Judge for yourself in this clip:

Things have been much quieter at the State Fair after Thursday's melee. The day after the mayhem, Gov. Scott Walker called the State Patrol in to prevent further violence, and the Fair instituted special rules: after 5 p.m., people under age 18 can only enter the fairgrounds with a parent or guardian aged 21 or older.